227976213 has 4 divisors (see below), whose sum is σ = 303968288. Its totient is φ = 151984140.

The previous prime is 227976187. The next prime is 227976289. The reversal of 227976213 is 312679722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 227976213 - 2⁵ = 227976181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227976313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37996033 + ... + 37996038.

It is an arithmetic number, because the mean of its divisors is an integer number (75992072).

Almost surely, 2^227976213 is an apocalyptic number.

It is an amenable number.

227976213 is a deficient number, since it is larger than the sum of its proper divisors (75992075).

227976213 is an equidigital number, since it uses as much as digits as its factorization.

227976213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75992074.

The product of its digits is 63504, while the sum is 39.

The square root of 227976213 is about 15098.8811837169. The cubic root of 227976213 is about 610.8902284397.

The spelling of 227976213 in words is "two hundred twenty-seven million, nine hundred seventy-six thousand, two hundred thirteen".